# -*- coding: utf-8 -*-#
#-------------------------------------------------------------------------------
# 建立者:        潘炎珍  
# Name:         demo12
# Description:
# Author:       98745
# Date:         2019/3/2
#-------------------------------------------------------------------------------

def j(n):
    if n==0 or n==1:
        return 1
    else:
        return n*j(n-1)
print(j(10))
def f(n):
    if n==1:
        return 0
    elif n==2:
        return 1
    else:
        return f(n-1)+f(n-2)
print(f(10))